Drone tilts before it takes off

M

malcom32

New Member
Hello, I'm having a problem with my DIY drone for a very long time. The problem is that the drone's motors work properly and evenly in the motor test, but whenever I try to operate it with the remote controller, the drone tilts and flips before it takes off. I'm pretty sure the motors and propeller directions are correct. I also made all the esc and pdb connections properly. I also performed the calibrations. I've repurchased all the parts, collected and mounted them again and still have the same problem. I have attached the video of the problem. I think the problem may be from the controller configuration or the parameters of the mission planner application I am using. Can someone help me with this issue?
Parts that i use in;
-Pixhawk 2.4.8 Flight Controller
-Matek PDB
-FlySky F6iX RC ve 10 channel receiver
-Emax Mt2212 II bldc motor
-Simon Series 30A Esc
-Power Xtra 2200mAh 20C Li-po Battery
-Ublox M8N GPS

Video footage of issue:
 
Looking carefully at your video, the drone tilts slightly it takes off, so that two rotors hit the ground and stop, and then the thrust from the other two rotors flip it over.

Is it possible that the controller joysticks need adjusting to give a default pure vertical upward thrust, instead of an immediate tilt in one direction ?
 
Double check the tilt and rotation in the 3d view in betaflight you may have your FC board flipped around in a weird orientation and can change the FC orientation in the configuration. If tilting the quad by hand forward back left and right and yawing it around moves in the wrong direction try a different FC/gyro orientation and then check the 3d view again.
 
HI, I'm having a similar problem. I have setup Betaflight 4.4 on a SpeedyBee SpeedyBee F405 V4 BLS 55A 30x30 Stack with 4 x EMAX 2306 motors.

All firmwares are up-to-date.

I've been through all the JB videos, set-up modes for Arming, Angle and Horizon adjusted the 3D View and checked the propellor/motor rotation, I have the Flight Controller flat next to the ESC.

No matter what I do, it back flips on lift off. Anything else I can check?
 
Before giving any throttle with the left stick just use the right stick to pitch forward or only use left stick for yaw and see if can determine if it's one side that dips. Usually if the entire thing flips it is a board rotation issue so beta flight is just correcting things backwards and it gets all flippy if you are able to isolate the issue to one corner then can better figure out what's wrong if it isn't a board orientation problem. Using right stick to tilt the quad forward and back and then left or right might help see which corner isn't giving thrust if that's the issue causing the flip. Then can see if it's just one prop is wrong one or motor direction wrong or something along those lines (can also test with tape on motors to see direction and using motors tab with props off to double check direction of things, also in there can confirm motor positions)
 
malcom32 said:
Hello, I'm having a problem with my DIY drone for a very long time. The problem is that the drone's motors work properly and evenly in the motor test, but whenever I try to operate it with the remote controller, the drone tilts and flips before it takes off. I'm pretty sure the motors and propeller directions are correct. I also made all the esc and pdb connections properly. I also performed the calibrations. I've repurchased all the parts, collected and mounted them again and still have the same problem. I have attached the video of the problem. I think the problem may be from the controller configuration or the parameters of the mission planner application I am using. Can someone help me with this issue?
Parts that i use in;
-Pixhawk 2.4.8 Flight Controller
-Matek PDB
-FlySky F6iX RC ve 10 channel receiver
-Emax Mt2212 II bldc motor
-Simon Series 30A Esc
-Power Xtra 2200mAh 20C Li-po tu Battery
-Ublox M8N GPS

Video footage of issue:
Click to expand...
It sounds like you're encountering a persistent issue with your DIY drone. Despite the motors and propellers working correctly during tests, the drone tilts and flips when you try to fly it using the remote controller. Here are some steps to help you troubleshoot and resolve the problem:

Begin by verifying the direction of each motor and propeller. Ensure they are spinning correctly as configured in your flight controller's settings. Incorrect motor direction can lead to instability during flight.

Check that all Simon Series 30A ESCs are properly calibrated. Calibration ensures accurate throttle signal interpretation from the flight controller. Follow the specific calibration procedure recommended for your ESCs.

Confirm that your Pixhawk 2.4.8 flight controller is mounted correctly according to its orientation guidelines. Proper orientation is crucial for accurate flight control and stabilization.

Review the configuration settings in your FlySky FSiX transmitter. Ensure that the channels are correctly mapped to correspond with the flight modes and control inputs expected by your Pixhawk flight controller.

Use Mission Planner to review and adjust flight parameters such as PID tuning, flight modes (e.g., stabilize, altitude hold), and fail-safe settings. Proper tuning of these parameters can improve flight stability and responsiveness.

Perform a thorough physical inspection of your drone. Check all connections between components (ESC, motors, flight controller, receiver) to ensure they are secure and free from any loose connections or damaged wires.

By methodically checking these aspects and making necessary adjustments, you should be able to diagnose and resolve the issue causing your drone to tilt and flip unexpectedly. If the problem persists, further detailed troubleshooting of specific components or settings may be necessary.
 
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